There are several types of Florida waterfront homes ranging from the least expensive which are on a pond (usually man-made) to the most expensive which are on either the Gulf of Mexico, Intracoastal Waterway or Tampa Bay. In between are those on a lake and those on canals (some which feed directly into the Gulf or Bay).
On this page you can search among those waterfront homes in any of the beach areas from St. Pete Beach up through Clearwater Beach or those on Davis Island in Tampa. These will be restricted to those Florida waterfront homes on the Gulf, Bay or Intracoastal. To see other homes in other areas or on other types of water, just go to the standard MLS search page and make sure to select Waterfront under the Features section.